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US3389527A
Expired / Lapsed
US
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Snap-together window wall framing and joining construction
Assignee: Individual
•
Filing: 1965-04-30
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Granted: 1968-06-25
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Expires: 1985-04-30
Abstract
No abstract record available.
Inventors
- 👤 Earl W Collard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:21
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/06; E06B3/08; E06B3/12; E06B3/14; E06B3/16; E04; E04B; E04B2/00; E04B2/88; E04B2/96; E04B2/967
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2866527A
Cited
US3031049A
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US3057444A
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US2988183A
Cited
US3209869A
Cited
US3216538A
Cited
US3293812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |